4. QEMU Malta

4.1. Big-endian mode

QEMU run string:

qemu-system-mips -nodefaults -M malta -m 256 \
    -nographic -serial stdio -monitor null \
    -bios barebox-flash-image

Also you can use GXemul:

gxemul -Q -x -e maltabe -M 256 0xbfc00000:barebox-flash-image

4.2. Little-endian mode

Running little-endian Malta is a bit tricky. In little-endian mode the 32bit words in the boot flash image are swapped, a neat trick which allows bi-endian firmware.

You have to swap words of zbarebox.bin image, e.g.:

echo arch/mips/pbl/zbarebox.bin \
    | cpio --create \
    | cpio --extract --swap --unconditional

QEMU run string:

qemu-system-mipsel -nodefaults -M malta -m 256 \
    -nographic -serial stdio -monitor null \
    -bios barebox-flash-image

4.3. Links

• http://www.linux-mips.org/wiki/Mips_Malta
• http://www.qemu.org/
• http://gxemul.sourceforge.net/